weighted seated twist (on stability ball)

Sit on a stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.

Hold a weight plate or dumbbell with both hands close to your chest.

Engage your core and slowly rotate your torso to one side, keeping your hips stable.

Pause for a moment at the end of the rotation, then slowly return to the starting position.

Repeat the rotation to the other side.

Continue alternating sides for the desired number of repetitions.